OEM Precision Welded Enclosures with Full-Length Piano Hinges
The w4-Welded Enclosure with Piano Hinge is a heavy-duty custom cabinet manufactured through our comprehensive sheet metal fabrication process. Utilizing advanced robotic welding cells (Yaskawa and Panasonic), we ensure highly rigid, leak-proof seams. This specific model features a precise, factory-installed continuous piano hinge designed to distribute weight evenly and eliminate door sagging in demanding environments.
Delivered fully finished with integrated locks and weather-resistant sealing gaskets, this enclosure is manufactured under strict ISO 9001 and IATF 16949 standards. It is engineered to reliably safeguard critical, frequently accessed components in power distribution, telecommunications, and industrial automation systems.
Material :
Cold Rolled Steel, Galvanized Steel, Stainless Steel, Aluminum AlloyThickness :
1.0mm - 5.0mmSurface Treatment :
Powder Coating, Liquid Painting, Sandblasting, Silk ScreeningProcess Involved :
Laser Cutting, CNC Bending, Welding, Hardware AssemblyPrecision Welded Metal Enclosures with Heavy-Duty Piano Hinges
Precision Robotic Welding • Continuous Hinge Integration • IATF Compliant

Product Overview
Precision Welding Operations: We utilize advanced TIG, MIG, and automated robotic welding to ensure strong, continuous seams for the main enclosure body, providing maximum structural rigidity for industrial applications.
Piano Hinge Integration: Expert installation of heavy-duty continuous piano hinges. This specialized design distributes weight evenly along the entire door length, preventing sagging and ensuring smooth operation for heavy or frequently accessed panels.
Custom Fabrication & Assembly: Seamless integration of the welded body with customized mounting brackets, tailored lock cutouts, and internal standoffs exactly as specified by your CAD models.
Comprehensive Surface Treatment: Post-weld grinding and polishing prepare the enclosure for premium finishing. We offer custom powder coating, anodizing, or specialized anti-corrosion treatments to protect the unit and the hinge mechanism in harsh environments.

What Can Be Customized
| Customization Aspects | Specific Parameters & Capabilities |
| Enclosure Sizing | Custom tailored dimensions for utility boxes, control cabinets, and tool storage |
| Material Options | Carbon steel, 304/316 stainless steel, and high-strength aluminum alloys |
| Hinge Specifications | Custom piano hinge lengths, specific pin diameters, and custom knuckle sizes |
| Welding Techniques | Robotic MIG/TIG, spot welding, and continuous laser welding for flawless seams |
| Finish & Coating | Custom RAL powder coating, stainless steel brushing, and industrial sandblasting |
Application Industries

Why Partner with Huapusheng?
✔ Factory-Direct Value Leveraging our 30,000m² facility in Xiamen and automated robotic lines, we eliminate middlemen to offer competitive pricing without compromising quality.
✔ Certified Reliability We adhere to ISO 9001 & IATF 16949 standards. Every component is validated using IPX5-6 labs and 3D Scanners to meet strict industrial specifications.
✔ DFM & Engineering Support Beyond fabrication, our engineers provide DFM analysis to optimize your 3D files, reducing material waste and simplifying assembly for mass production.
✔ Scalable Capacity From 50 prototypes to 50,000 units, our fleet of 12KW lasers and 4 bending robots ensures rapid ramp-up and on-time delivery.
Leave A Message
Scan to Wechat :
Scan to Whatsapp :
Hi! Click one of our members below to chat on